Kind of gets me, the year 2050, as if humanity will even get to that late date. Even without the fantastically bad CAGW, overpopulation itself would lead to a crash to less than 10% before 2050, and with CAGW, it could be extinction.
The fact that the tipping point of open ocean warming leading to tundra methane self release along with oceanic, was passed EIGHT YEARS AGO, and since 2009 have been in an Arctic Methane Emergency, proclaimed by Arctic scientists.
That tiny sliver of hope that people will wise up and lower emissions and their numbers enough voluntarily by 2024, is fast disappearing.
Then there is the wonder of geologically due large enough catastrophes to crash the human population. Will they happen before 2024?
Will financial meltdown initiate the crash soon? Nuclear war? A plague or set of them larger than ever?
After 2024, it would take the super eruption of Yellowstone to stop the progression to Global Terminal Extinction worse than ever in Earth history. Methane turnover is no joke and we are in the first stages toward losing our entire biosphere.
The people of now are murdering all the billions of kids who could have lived if we would have collectively changed our lives to one child, solar, Earthship style , hybrid, electric vehicles only, sails on the sea, grow your own type of life. Not just those poor human kids, but all the cute puppies, kittens and kits, probably forever.
Half ass will not get the job done, nor will even an 80% reduction. There probably will be no civilization to ring in 2050, and damn few humans left in worsening conditions. There has been no progress that is really evident, and certainly not the effort and knowledge needed to save ourselves, our needed ecosystems, and most other life. It is very sad. It is a painful ordeal to even know about.
So let us try to enjoy what time we have left. Smoke a bowl, play my solar electric guitars, and attempt to gut the increasing pain of my combat injured back caused sciatica. Death is coming toward me, and the world, like a freight train. I hear my train a'comin'.
Well, chiropractic has really helped. In response to Dingo below;
Nigeria and other parts of Africa, with various islands countries, will be followed by India then China in the cascading population crash starting around 2030. Maybe that is how they will reduce emissions, except for the stench of death.
Well, if China and India are not going to do enough, it doesn't matter if the USA goes emissions free. Everyone is in for an exciting ride into hell on Earth. 15 years ago was Y2K, and only 15 years ahead before the party is definitely over, and death spreads with chaos. It may be hard to imagine for most, so ignorance will be a blessing.